18687080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27481}}^1$

素因数の和:27509

約数の個数: 32

約数和(自身を含む): 44520840

約数和(自身を除く): 25833760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 27481, 54962, 109924, 137405, 219848, 274810, 467177, 549620, 934354, 1099240, 1868708, 2335885, 3737416, 4671770, 9343540, 18687080]

約数ペア:

[(1, 18687080), (2, 9343540), (4, 4671770), (5, 3737416), (8, 2335885), (10, 1868708), (17, 1099240), (20, 934354), (34, 549620), (40, 467177), (68, 274810), (85, 219848), (136, 137405), (170, 109924), (340, 54962), (680, 27481)]